Woofun AI reports that Kimi K3 has intensified a split within the US AI community. David Sacks noted significant work migration from Claude to Kimi due to its efficiency, while Chamath Palihapitiya argued that closed-source models cannot compete with the pricing of open alternatives. Jack Dorsey also publicly endorsed open-source approaches. Conversely, some officials advocate using regulation and national security measures to restrict Chinese models, fearing price suppression will undermine US investment incentives. This dynamic forces the US sector to choose between adopting open standards or implementing containment strategies.